* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

html, body{
  margin:0;
  height:100%;
}

#rssreader {
  padding: 0;
  height:100%;
}

#layout {
  padding: 0;
  height:100%;
}

.cen{
  text-align: center;
}

.rss-source-lists{
  padding:5px;
  background: rgb(61, 79, 93);
  color: #fff;
  top: auto;
}

nav{
  position: absolute;
  bottom: 15px;
}

.nav-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-item {
    display: inline-block;
    *display: inline;
    zoom: 1;
    padding-right: 10px;
}
.nav-item-a {
    background: transparent;
    border: 2px solid rgb(176, 202, 219);
    color: #fff;
    margin-top: 1em;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 85%;
}
.nav-item-a:hover,
.nav-item-a:focus {
    border: 2px solid rgb(61, 146, 201);
    text-decoration: none;
}

/**=================================Source Editor============================**/
.rsseditor{
  margin-top:10px;
  margin-bottom: 10px;
  height:30px;
  width: 100%;
  color:black;
}

/**=================================pop============================**/
.overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity 500ms;
  visibility: hidden;
  opacity: 0;
}
.overlay:target {
  visibility: visible;
  opacity: 1;
}

.popup {
  margin: 70px auto;
  padding: 20px;
  background: #fff;
  border-radius: 5px;
  width: 30%;
  position: relative;
  transition: all 5s ease-in-out;
}

.popup h2 {
  margin-top: 0;
  color: #333;
  font-family: Tahoma, Arial, sans-serif;
}
.popup .close {
  position: absolute;
  top: 20px;
  right: 30px;
  transition: all 200ms;
  font-size: 30px;
  font-weight: bold;
  text-decoration: none;
  color: #333;
}
.popup .close:hover {
  color: orange;
}
.popup .content {
  max-height:50%;
  overflow: auto;
}

.button-secondary {
  color: white;
  border-radius: 4px;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
  background: rgb(66, 184, 221); /* this is a light blue */
}
